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/linux-6.6.21/Documentation/userspace-api/
Dspec_ctrl.rst16 :manpage:`prctl(2)`.
18 There are two prctl options which are related to this:
28 which is selected with arg2 of prctl(2). The return value uses bits 0-3 with
41 subsequent prctl(..., PR_SPEC_ENABLE) will fail.
49 available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation
58 is selected by arg2 of :manpage:`prctl(2)` per task. arg3 is used to hand
67 EINVAL The prctl is not implemented by the architecture or unused
68 prctl(2) arguments are not 0.
95 * prctl(PR_GET_SPECULATION_CTRL, PR_SPEC_STORE_BYPASS, 0, 0, 0);
96 * prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_STORE_BYPASS, PR_SPEC_ENABLE, 0, 0);
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/linux-6.6.21/tools/testing/selftests/syscall_user_dispatch/
Dsud_test.c68 ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_ON, 0, 0, &sel); in TEST_SIGNAL()
89 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0, 0, &sel); in TEST()
96 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x1, 0x0, 0); in TEST()
100 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0xff, 0); in TEST()
104 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0x0, &sel); in TEST()
109 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0x0, 0x0); in TEST()
116 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x1, 0x0, &sel); in TEST()
118 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, -1L, 0x0, &sel); in TEST()
122 prctl(PR_SET_SYSCALL_USER_DISPATCH, op, 0x0, 0x1, (void *) -1); in TEST()
128 prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_ON, 1, -1L, &sel); in TEST()
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/linux-6.6.21/tools/testing/selftests/riscv/vector/
Dvstate_prctl.c63 rc = prctl(PR_RISCV_V_SET_CONTROL, provided); in test_and_compare_child()
100 rc = prctl(PR_RISCV_V_GET_CONTROL); in main()
106 rc = prctl(PR_RISCV_V_SET_CONTROL, PR_RISCV_V_VSTATE_CTRL_ON); in main()
117 rc = prctl(PR_RISCV_V_SET_CONTROL, flag); in main()
124 rc = prctl(PR_RISCV_V_SET_CONTROL, flag); in main()
162 rc = prctl(PR_RISCV_V_SET_CONTROL, 0xff0); in main()
168 rc = prctl(PR_RISCV_V_SET_CONTROL, 0x3); in main()
174 rc = prctl(PR_RISCV_V_SET_CONTROL, 0xc); in main()
180 rc = prctl(PR_RISCV_V_SET_CONTROL, 0xc); in main()
/linux-6.6.21/tools/testing/selftests/seccomp/
Dseccomp_bpf.c340 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT, NULL, NULL, NULL); in TEST()
351 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT, NULL, NULL, NULL); in TEST_SIGNAL()
367 ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); in TEST()
378 ret = prctl(PR_SET_NO_NEW_PRIVS, 1, NULL, 0, 0); in TEST()
382 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, NULL, NULL, NULL); in TEST()
402 ret = prctl(PR_GET_NO_NEW_PRIVS, 0, NULL, 0, 0); in TEST()
407 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0); in TEST()
437 ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); in TEST()
444 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0); in TEST()
451 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0); in TEST()
[all …]
Dseccomp_benchmark.c167 ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); in main()
171 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog); in main()
178 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog); in main()
185 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog); in main()
192 ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog); in main()
/linux-6.6.21/tools/testing/selftests/mm/
Dmdwe_test.c25 EXPECT_LT(prctl(PR_SET_MDWE, 7L, 0L, 0L, 0L), 0); in TEST()
26 EXPECT_LT(prctl(PR_SET_MDWE, 0L, 7L, 0L, 0L), 0); in TEST()
27 EXPECT_LT(prctl(PR_SET_MDWE, 0L, 0L, 7L, 0L), 0); in TEST()
28 EXPECT_LT(prctl(PR_SET_MDWE, 0L, 0L, 0L, 7L), 0); in TEST()
30 EXPECT_LT(prctl(PR_GET_MDWE, 7L, 0L, 0L, 0L), 0); in TEST()
31 EXPECT_LT(prctl(PR_GET_MDWE, 0L, 7L, 0L, 0L), 0); in TEST()
32 EXPECT_LT(prctl(PR_GET_MDWE, 0L, 0L, 7L, 0L), 0); in TEST()
33 EXPECT_LT(prctl(PR_GET_MDWE, 0L, 0L, 0L, 7L), 0); in TEST()
79 ret = prctl(PR_SET_MDWE, PR_MDWE_REFUSE_EXEC_GAIN, 0L, 0L, 0L); in FIXTURE_SETUP()
84 ret = prctl(PR_GET_MDWE, 0L, 0L, 0L, 0L); in FIXTURE_SETUP()
Dksm_functional_tests.c187 ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0); in mmap_and_merge_range()
405 ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0); in test_prctl()
414 ret = prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0); in test_prctl()
423 ret = prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0); in test_prctl()
429 ret = prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0); in test_prctl()
449 ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0); in test_prctl_fork()
460 exit(prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0)); in test_prctl_fork()
474 if (prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0)) { in test_prctl_fork()
493 if (prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0)) { in test_prctl_unmerge()
/linux-6.6.21/tools/testing/selftests/prctl/
Ddisable-tsc-test.c49 if ( prctl(PR_GET_TSC, &tsc_val) == -1) in sigsegv_cb()
55 if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1) in sigsegv_cb()
71 if ( prctl(PR_GET_TSC, &tsc_val) == -1) in main()
79 if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1) in main()
86 if ( prctl(PR_SET_TSC, PR_TSC_SIGSEGV) == -1) in main()
Dset-process-name.c20 res = prctl(PR_SET_NAME, name, NULL, NULL, NULL); in set_name()
32 res = prctl(PR_GET_NAME, name, NULL, NULL, NULL); in check_is_name_correct()
45 res = prctl(PR_GET_NAME, name, NULL, NULL, NULL); in check_null_pointer()
Ddisable-tsc-on-off-stress-test.c50 if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0) in sigsegv_cb()
72 if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0) in task()
Ddisable-tsc-ctxt-sw-stress-test.c46 if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0) in segvtask()
67 if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0) in rdtsctask()
/linux-6.6.21/tools/testing/selftests/capabilities/
Dtest_execve.c105 if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0) in create_and_enter_ns()
285 …if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != -1 || errno != E… in do_tests()
302 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_RAW, 0, 0, 0) != -1 || errno != EPERM) { in do_tests()
313 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) { in do_tests()
320 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 1) { in do_tests()
325 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0, 0, 0, 0) != 0) in do_tests()
329 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) { in do_tests()
335 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) in do_tests()
343 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) { in do_tests()
363 if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) in do_tests()
/linux-6.6.21/tools/testing/selftests/arm64/fp/
Dvec-syscfg.c311 ret = prctl(data->prctl_get); in prctl_get()
336 ret = prctl(data->prctl_set, cur_vl); in prctl_set_same()
360 ret = prctl(data->prctl_set, data->min_vl); in prctl_set()
381 ret = prctl(data->prctl_set, data->max_vl); in prctl_set()
396 ret = prctl(data->prctl_get); in prctl_set()
423 ret = prctl(data->prctl_set, data->min_vl); in prctl_set_no_child()
461 ret = prctl(data->prctl_set, data->min_vl | PR_SVE_VL_INHERIT); in prctl_set_for_child()
470 ret = prctl(data->prctl_get); in prctl_set_for_child()
517 ret = prctl(data->prctl_set, data->max_vl); in prctl_set_onexec()
526 ret = prctl(data->prctl_set, data->min_vl | PR_SVE_SET_VL_ONEXEC); in prctl_set_onexec()
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/linux-6.6.21/tools/perf/trace/beauty/
Dprctl_option.sh8 grep -E $regex ${header_dir}/prctl.h | grep -v PR_SET_PTRACER | \
15 grep -E $regex ${header_dir}/prctl.h | \
/linux-6.6.21/Documentation/translations/zh_CN/userspace-api/
Dseccomp_filter.rst45 添加了一个额外的seccomp模式，它可以使用和严格seccomp相同的 prctl(2) 调用来启用。
55 prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, prog);
63 在调用之前，进程必须调用 ``prctl(PR_SET_NO_NEW_PRIVS, 1)`` 或者在它的
68 另外，如果 ``prctl(2)`` 被安装的过滤器所允许，就可以叠加额外的过滤器。这会增
/linux-6.6.21/Documentation/admin-guide/LSM/
DYama.rst30 For a solution, some applications use ``prctl(PR_SET_DUMPABLE, ...)`` to
39 ``prctl(PR_SET_PTRACER, pid, ...)`` can be used. An inferior can declare which
45 restrictions, it can call ``prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, ...)``
55 ``prctl(PR_SET_DUMPABLE...)`` already). Similarly, ``PTRACE_TRACEME`` is
63 inferior can call ``prctl(PR_SET_PTRACER, debugger, ...)`` to declare
/linux-6.6.21/samples/seccomp/
Ddropper.c49 if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) { in install_filter()
53 if (prctl(PR_SET_SECCOMP, 2, &prog)) { in install_filter()
Dbpf-fancy.c88 if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) { in main()
93 if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog)) { in main()
/linux-6.6.21/tools/testing/selftests/arm64/mte/
Dcheck_prctl.c19 ret = prctl(PR_SET_TAGGED_ADDR_CTRL, val, 0, 0, 0); in set_tagged_addr_ctrl()
30 ret = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0); in get_tagged_addr_ctrl()
Dcheck_gcr_el1_cswitch.c49 if (prctl(PR_SET_TAGGED_ADDR_CTRL, prctl_set, 0, 0, 0)) { in execute_thread()
54 prctl_get = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0); in execute_thread()
/linux-6.6.21/tools/testing/selftests/powerpc/pmu/
Dper_event_excludes.c74 prctl(PR_TASK_PERF_EVENTS_ENABLE); in per_event_excludes()
80 prctl(PR_TASK_PERF_EVENTS_DISABLE); in per_event_excludes()
/linux-6.6.21/tools/testing/selftests/arm64/signal/testcases/
Dsve_regs.c31 vl = prctl(PR_SVE_SET_VL, vq * 16); in sve_get_vls()
67 if (prctl(PR_SVE_SET_VL, vl) == -1) { in do_one_sve_vl()
Dssve_regs.c31 vl = prctl(PR_SME_SET_VL, vq * 16); in sme_get_vls()
72 ret = prctl(PR_SME_SET_VL, vl); in do_one_sme_vl()
Dza_no_regs.c31 vl = prctl(PR_SME_SET_VL, vq * 16); in sme_get_vls()
61 if (prctl(PR_SME_SET_VL, vl) != vl) { in do_one_sme_vl()
Dza_regs.c31 vl = prctl(PR_SME_SET_VL, vq * 16); in sme_get_vls()
73 if (prctl(PR_SME_SET_VL, vl) != vl) { in do_one_sme_vl()

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